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Analytical study on the Effect of Electric Arc Furnace Dust(EAFD)on the Rutting of Asphalt Concrete Mixtures

Journal of smart Buildings and Construction Technology 2023年第1期5卷 24-28页

作者： Mohammad A.T.Alsheyab taisir s.khedaywi Department of Chemical Engineering Qatar UniversityDoha2713Qatar Ministry of Development Planning and statistics DohaQatar 3 Jordan University of science and Technology Irbid22110Jordan

As a byproduct of the steelmaking process,significant amounts of hazardous electric arc furnace dust(EAFD)are *** the solidification/stabilization technology with asphalt mix is one way to safeguard the environment from its negative *** was used as an indicator to assess the asphalt mixture with EAFD since it is an important factor in pavement *** study’s major goal is to ascertain how EAFD affects the rutting of asphalt-concrete *** evaluate the ideal asphalt content,the Marshall test method was applied to asphalt-concrete *** was added to the asphalt cement in four different volume percentages as a binder ***,using the Universal Testing Machine,participants were exposed to a replica of the rutting test(UTM).Experiments were conducted at 25℃,40℃ and 55℃,and at frequencies of 1 Hz,4 Hz and 8 *** was measured for each *** results showed that rut depth has a negative correlation with EAFD%and a positive correlation with *** use of EAFD has dual advantages,protecting the environment from the adverse impact of EAFD and reducing the cost of asphalt mix without jeopardizing pavement performance.

关键词： EAFD Rutting Asphalt mixtures Temperature Loading frequencies

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The Impact of social Media Networks Websites Usage on students’ Academic Performance

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Communications and Network 2015年第4期7卷 159-171页

作者： Mahmoud Maqableh Lama Rajab Walaa Quteshat Ra’ed Moh’d taisir Masa’deh Tahani Khatib Huda Karajeh Management Information systems Faculty of Business The University of Jordan Amman Jordan Computer Information systems King Abdullah II School for Information Technology University of Jordan Amman Jordan

social Networks sites (sNss) are dominating all internet users’ generations, especially the students’ communities. Consequently, academic institutions are increasingly using sNss which leads to emerge a crucial question regarding the impact of sNss on students’ academic performance. This research investigates how and to what degree the use of sNss affects the students’ academic performance. The current research’s data was conducted by using drop and collect surveys on a large population from the University of Jordan. 366 undergraduate students answered the survey from different faculties at the university. In order to study the impact of sNss on student’s academic performance, the research hypotheses was tested by using descriptive analysis, T-test and ANOVA. Research results showed that there was a significant impact of sNs on the student’s academic performance. Also, there was a significant impact of sNs use per week on the student’s academic performance, whereas no differences found in the impact of use of sNss on academic performance due to age, academic achievement, and use per day to most used sites. The findings of this research can be used to suggest future strategies in enhancing student’s awareness in efficient time management and better multitasking that can lead to improving study activities and academic achievements.

关键词： social Network sites Academic Performance University students T-Test ANOVA

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